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  1. #1


    Member Since
    Sep 27, 2013
    Posts
    4
    Macbook Pro Suddenly unable to handle Cubase 6
    Hi,

    I have a Macbook Pro Late 2011 Model 15", updated to latest version Mountain Lion 10.8.5

    2Ghz Core i7
    4GB DDR3 memory
    128GB SSD + 500GB HD
    Focusrite Pro40 (Firewire)

    I was running Cubase amazingly well on this setup, until one day my battery died and everything went haywire. I am running the system connected at all times, and have no need for the battery.
    The system started freezing and giving me extreme high CPU usage from kernel_task and made Cubase unusable. I was able to partially fix this by modifying a kext extension (Fix here: “Fixing” kernel_task CPU Problems in MacOS 10.7/10.8 | rdoxenham.com). I thought the problems would end there. kernel_task CPU usage went down to 20% but still hogging CPU

    Going back to Cubase - all the projects that were running 100% completely fine started acting insanely sluggish and giving me extreme unusable digital noise until I got rid of half the tracks \ vsts.

    I was wondering what happened? This system was perfectly capable of running these exact same files, suddenly it is unable to handle them!

    I have tried:

    1- Deleting \ resetting the cache
    2- Repairing permissions for hard drives (+SMART scan on both HDs)
    3- Resetting NV ram etc
    4- There are no overheating issues (running at 65+- celsius)

    kernel_task is obviously causing this problem. While Cubase is running at 200% , I noticed that right behind it, kernel_task is running at 25%. Its the outlier and whats causing the issue. Somebody please help me get rid of the pesky kernel_task bug

  2. #2

    Lightcraftsman's Avatar
    Member Since
    May 23, 2012
    Location
    Colorado
    Posts
    269
    Specs:
    15-inch 2014 Retina MacBook Pro, 2012 Mac Mini, 160GB iPod Classic, iPhone 5
    How does your computer behave when running other apps?
    "It's got to come from the heart, if you want it to work."
    Guy Clark

    Light Craftsman website

  3. #3


    Member Since
    Sep 27, 2013
    Posts
    4
    Quote Originally Posted by Lightcraftsman View Post
    How does your computer behave when running other apps?
    it is sluggish as hell,

    Could my CPU be running at half-speed due to my battery being dead?

  4. #4

    Lightcraftsman's Avatar
    Member Since
    May 23, 2012
    Location
    Colorado
    Posts
    269
    Specs:
    15-inch 2014 Retina MacBook Pro, 2012 Mac Mini, 160GB iPod Classic, iPhone 5
    That is a possibility. Can you take it to an Apple Store for testing?
    "It's got to come from the heart, if you want it to work."
    Guy Clark

    Light Craftsman website

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